Introduction：Basic information about CAS 6166-86-5|pentamethylcyclopentasiloxane, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | pentamethylcyclopentasiloxane |
|---|
| CAS Number | 6166-86-5 | Molecular Weight | 300.637 |
|---|
| Density | 0.992 g/mL at 25ºC(lit.) | Boiling Point | 169.0±0.0 °C at 760 mmHg |
|---|
| Molecular Formula | C5H20O5Si5 | Melting Point | -108ºC |
|---|
| MSDS | ChineseUSA | Flash Point | 52.9±18.7 °C |
|---|
| Symbol |
GHS02 | Signal Word | Warning |
|---|
Names
| Name | 2,4,6,8,10-pentamethyl-1,3,5,7,9,2λ3,4λ3,6λ3,8λ3,10λ3-pentaoxapentasilecane |
|---|
| Synonym | More Synonyms |
|---|
Chemical & Physical Properties
| Density | 0.992 g/mL at 25ºC(lit.) |
|---|
| Boiling Point | 169.0±0.0 °C at 760 mmHg |
|---|
| Melting Point | -108ºC |
|---|
| Molecular Formula | C5H20O5Si5 |
|---|
| Molecular Weight | 300.637 |
|---|
| Flash Point | 52.9±18.7 °C |
|---|
| Exact Mass | 300.015717 |
|---|
| PSA | 46.15000 |
|---|
| Appearance of Characters | liquid |
|---|
| Vapour Pressure | 2.1±0.3 mmHg at 25°C |
|---|
| Index of Refraction | n20/D 1.392(lit.) |
|---|
| InChIKey | PUNGSQUVTIDKNU-UHFFFAOYSA-N |
|---|
| SMILES | C[Si]1O[Si](C)O[Si](C)O[Si](C)O[Si](C)O1 |
|---|
| Storage condition | 2-8°C |
|---|
Safety Information
| Symbol |
GHS02 |
|---|
| Signal Word | Warning |
|---|
| Hazard Statements | H226 |
|---|
| Personal Protective Equipment | Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter |
|---|
| Hazard Codes | Xi |
|---|
| Risk Phrases | 10-36/37/38 |
|---|
| Safety Phrases | 16-26-36 |
|---|
| RIDADR | UN 1993 3/PG 3 |
|---|
| WGK Germany | 3 |
|---|
| HS Code | 2901100000 |
|---|
Customs
| HS Code | 2901100000 |
|---|
| Summary | 2901100000 saturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
|---|
Synonyms
| 2,4,6,8,10-Pentamethylcyclopentasiloxane |
| MFCD00053531 |
| 2,4,6,8,10-Pentamethyl-cyclopentasiloxan |
| Cyclopentasiloxane,2,4,6,8,10-pentamethyl |
| 1,3,5,7,9-pentamethylcyclopentasiloxane |
| 2,4,6,8,10-Pentamethyl-1,3,5,7,9,2,4,6,8,10-pentoxapentasilecane |
| EINECS 228-204-7 |
| 2,3-DIHYDRO-5-FURYLBORONIC ACID PINACOL ESTER |
| pentamethyl cyclopentasiloxane |
| Cyclopentasiloxane, 2,4,6,8,10-pentamethyl- |
| 1,3,5,7,9-pentamethylhydrocyclopentasiloxane |
| cyclopentasiloxane |
